<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=<device-width>, initial-scale=1.0">
    <title>Traceur转码器使用</title>
    <!-- 加载编译器 -->
    <script src="./js/traceur/traceur.js"></script>
    <!-- 兼容浏览器环境 -->
    <script src="./js/traceur/BrowserSystem.js"></script>
    <!-- 引导程序将traceur编译器用于网页 -->
    <script src="./js/traceur/bootstrap.js"></script>
</head>
<body>
    <script type="module">
        const a = 12;
        alert(a)
    </script>
</body>
</html>